Lettuces, Field, Cultural Data

Cultural data: field planting Growing season: cool season Days to maturity: determined by variety average 50 days Germination relative to soil temperature: optimum 40-75ºF. Cultural information: can be sown directly into the ground as soon as soil can be worked, or indoors and then transplant. Plant in rows 12"-18" apart, 1" between seeds. Seed count: average 400,000 seeds/lb. Projected seed usage: direct seed ¼ - ½ oz. per 100 ft. row, 1 pound per acre. Diseases and pests: mildew problems can be avoided by proper spacing and variety selection. Harvesting: cut for full heads or for individual leaves. “MI” means Mosaic Indexed - zero cases of Mosaic virus found in 30,000 plants.